| Towcester to Nyon | 513.06 mi (825.69 km) |
| Towcester to Oberriet | 576.12 mi (927.17 km) |
| Towcester to Obersiggenthal | 522.98 mi (841.65 km) |
| Towcester to Oberwil | 496.24 mi (798.62 km) |
| Towcester to Oberwingert | 538.54 mi (866.69 km) |
| Towcester to Oftringen | 517.89 mi (833.46 km) |
| Towcester to Olten | 515.74 mi (830.01 km) |
| Towcester to Onex | 520.50 mi (837.67 km) |
| Towcester to Opfikon | 535.08 mi (861.13 km) |
| Towcester to Ostermundigen | 521.26 mi (838.89 km) |
| Towcester to Payerne | 510.62 mi (821.77 km) |
| Towcester to Pfaffikon | 545.76 mi (878.32 km) |
| Towcester to Plan-les-Ouates | 521.90 mi (839.92 km) |
| Towcester to Pratteln | 501.06 mi (806.37 km) |
| Towcester to Prilly | 515.52 mi (829.65 km) |
